Related by context. Frequent words. (Click for all words.) 56 unaddressed 55 unresolved 46 untouched 45 untended 45 unchecked 44 bedeviling 43 tackling 43 vexing 43 intractable 43 tackle 42 thorny 42 Tackling 42 festering 41 seemingly intractable 41 thornier 41 underdevelopment 41 tackled 41 thorniest 40 bedeviled 39 endemic 39 unsolvable 39 plaguing 39 bedevil 39 inefficiency 38 unsolved 38 fester 38 blights 38 unexamined 38 besetting 38 Bureaucratic 38 bugbear 38 unfixed 38 exacerbating 38 surmountable 38 Unresolved 37 blighting 37 untreated 37 knotty 37 vexed 37 uncontrolled 37 poorly understood 37 rampant 37 Solving 37 thorny issue 36 unreformed 36 unacknowledged 36 grapple 36 fraught 36 solve 36 uncollected 36 unabated 36 insoluble 36 rife 36 unanswered 36 unpunished 36 virtually untouched 36 undone 36 burdened 36 solvable 35 solved 35 unrepaired 35 enmities 35 unexploited 35 uncorrected 35 root causes 35 uncompleted 35 mired 35 unsold 35 unmanaged 35 problematic 35 underinvestment 34 nuclear proliferation 34 non existent 34 confronting 34 uninhabitable 34 glaring 34 environmental degradation 34 bedevils 34 redressing 34 plagues 34 unanswerable 34 unsustainable 34 festers 34 vast swathes 34 gaping holes 34 unfunded 34 unmanageable 34 addressing 33 beset 33 problem 33 plagued 33 plague 33 solving 33 unanswered questions 33 spiraling 33 periphery 33 unregulated 33 poverty illiteracy 33 facing 33 unfinished 33 underdeveloped